There were 15 beaches that tested in the cleanest category with no water samples exceeding the clean-water cutoff (green), seven beaches with up to 10 percent of water samples exceeding limits (yellow), and two beaches with 10 percent to 20 percent of samples exceeding the limit (orange). No Delaware beaches were in the had more than 20 percent of samples that exceeded the clean water limits (red).

Beaches in Delaware that had the highest rates of exceeding the clean water samples were: Rehoboth-Virginia Avenue Beach in Sussex County (11 percent), Deauville Beach in Sussex County (11 percent), Slaughter Beach in Sussex County (8 percent) and Broadkill Beach in Sussex County (6 percent).